2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 mainmenu "Linux Kernel Configuration"
12 select SYS_SUPPORTS_APM_EMULATION
14 The ARM series is a line of low-power-consumption RISC chip designs
15 licensed by ARM Ltd and targeted at embedded applications and
16 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
17 manufactured, but legacy ARM-based PC hardware remains popular in
18 Europe. There is an ARM Linux project with a web page at
19 <http://www.arm.linux.org.uk/>.
21 config SYS_SUPPORTS_APM_EMULATION
32 config GENERIC_CLOCKEVENTS
47 The Extended Industry Standard Architecture (EISA) bus was
48 developed as an open alternative to the IBM MicroChannel bus.
50 The EISA bus provided some of the features of the IBM MicroChannel
51 bus while maintaining backward compatibility with cards made for
52 the older ISA bus. The EISA bus saw limited use between 1988 and
53 1995 when it was made obsolete by the PCI bus.
55 Say Y here if you are building a kernel for an EISA-based machine.
65 MicroChannel Architecture is found in some IBM PS/2 machines and
66 laptops. It is a bus system similar to PCI or ISA. See
67 <file:Documentation/mca.txt> (and especially the web page given
68 there) before attempting to build an MCA bus kernel.
70 config GENERIC_HARDIRQS
74 config STACKTRACE_SUPPORT
78 config LOCKDEP_SUPPORT
82 config TRACE_IRQFLAGS_SUPPORT
86 config HARDIRQS_SW_RESEND
90 config GENERIC_IRQ_PROBE
94 config GENERIC_LOCKBREAK
97 depends on SMP && PREEMPT
99 config RWSEM_GENERIC_SPINLOCK
103 config RWSEM_XCHGADD_ALGORITHM
106 config ARCH_HAS_ILOG2_U32
110 config ARCH_HAS_ILOG2_U64
114 config GENERIC_HWEIGHT
118 config GENERIC_CALIBRATE_DELAY
122 config ARCH_MAY_HAVE_PC_FDC
129 config GENERIC_ISA_DMA
140 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
141 default DRAM_BASE if REMAP_VECTORS_TO_RAM
144 The base address of exception vectors.
146 source "init/Kconfig"
151 prompt "ARM system type"
152 default ARCH_VERSATILE
155 bool "Agilent AAEC-2000 based"
158 This enables support for systems based on the Agilent AAEC-2000
160 config ARCH_INTEGRATOR
161 bool "ARM Ltd. Integrator family"
165 Support for ARM's Integrator platform.
168 bool "ARM Ltd. RealView family"
172 select GENERIC_CLOCKEVENTS
174 This enables support for ARM Ltd RealView boards.
176 config ARCH_VERSATILE
177 bool "ARM Ltd. Versatile family"
182 select GENERIC_CLOCKEVENTS
184 This enables support for ARM Ltd Versatile board.
190 This enables support for systems based on the Atmel AT91RM9200,
191 AT91SAM9 and AT91CAP9 processors.
194 bool "Cirrus CL-PS7500FE"
199 Support for the Cirrus Logic PS7500FE system-on-a-chip.
202 bool "Cirrus Logic CLPS711x/EP721x-based"
204 Support for Cirrus Logic 711x/721x based boards.
209 select FOOTBRIDGE_ADDIN
211 Support for Intel's EBSA285 companion chip.
218 This is an evaluation board for the StrongARM processor available
219 from Digital. It has limited hardware on-board, including an
220 Ethernet interface, two PCMCIA sockets, two serial ports and a
229 This enables support for the Cirrus EP93xx series of CPUs.
231 config ARCH_FOOTBRIDGE
235 Support for systems based on the DC21285 companion chip
236 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
239 bool "Hilscher NetX based"
242 This enables support for systems based on the Hilscher NetX Soc
245 bool "Hynix HMS720x-based"
248 This enables support for systems based on the Hynix HMS720x
254 select GENERIC_CLOCKEVENTS
256 Support for Motorola's i.MX family of processors (MX1, MXL).
263 select ARCH_SUPPORTS_MSI
265 Support for Intel's IOP13XX (XScale) family of processors.
273 Support for Intel's 80219 and IOP32X (XScale) family of
282 Support for Intel's IOP33X (XScale) family of processors.
289 Support for Intel's IXP23xx (XScale) family of processors.
292 bool "IXP2400/2800-based"
296 Support for Intel's IXP2400/2800 (XScale) family of processors.
303 select GENERIC_CLOCKEVENTS
305 Support for Intel's IXP4XX (XScale) family of processors.
311 Say Y here if you intend to run this kernel on a LinkUp Systems
312 L7200 Software Development Board which uses an ARM720T processor.
313 Information on this board can be obtained at:
315 <http://www.linkupsys.com/>
317 If you have any questions or comments about the Linux kernel port
318 to this board, send e-mail to <sjhill@cotw.com>.
321 bool "Micrel/Kendin KS8695"
324 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
325 System-on-Chip devices.
328 bool "NetSilicon NS9xxx"
331 select GENERIC_CLOCKEVENTS
333 Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
336 <http://www.digi.com/products/microprocessors/index.jsp>
339 bool "Freescale MXC/iMX-based"
342 Support for Freescale MXC/iMX-based family of processors
350 select GENERIC_CLOCKEVENTS
352 Support for Marvell Orion System on Chip family.
355 bool "Philips Nexperia PNX4008 Mobile"
357 This enables support for Philips PNX4008 mobile platform.
360 bool "PXA2xx/PXA3xx-based"
365 select GENERIC_CLOCKEVENTS
368 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
375 select ARCH_MAY_HAVE_PC_FDC
379 On the Acorn Risc-PC, Linux can support the internal IDE disk and
380 CD-ROM interface, serial and parallel port, and the floppy drive.
385 select ARCH_DISCONTIGMEM_ENABLE
390 Support for StrongARM 11x0 based boards.
393 bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
396 Samsung S3C2410X CPU based systems, such as the Simtec Electronics
397 BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
398 the Samsung SMDK2410 development board (and derivatives).
406 Support for the StrongARM based Digital DNARD machine, also known
407 as "Shark" (<http://www.shark-linux.de/shark.html>).
412 Say Y here for systems based on one of the Sharp LH7A40X
413 System on a Chip processors. These CPUs include an ARM922T
414 core with a wide array of integrated devices for
415 hand-held and low-power applications.
420 select GENERIC_CLOCKEVENTS
423 Support for TI's DaVinci platform.
430 Support for TI's OMAP platform (OMAP1 and OMAP2).
433 bool "Qualcomm MSM7X00A"
435 select GENERIC_CLOCKEVENTS
437 Support for Qualcomm MSM7X00A based systems. This runs on the ARM11
438 apps processor of the MSM7X00A and depends on a shared memory
439 interface to the ARM9 modem processor which runs the baseband stack
440 and controls some vital subsystems (clock and power control, etc).
441 <http://www.cdmatech.com/products/msm7200_chipset_solution.jsp>
445 source "arch/arm/mach-clps711x/Kconfig"
447 source "arch/arm/mach-ep93xx/Kconfig"
449 source "arch/arm/mach-footbridge/Kconfig"
451 source "arch/arm/mach-integrator/Kconfig"
453 source "arch/arm/mach-iop32x/Kconfig"
455 source "arch/arm/mach-iop33x/Kconfig"
457 source "arch/arm/mach-iop13xx/Kconfig"
459 source "arch/arm/mach-ixp4xx/Kconfig"
461 source "arch/arm/mach-ixp2000/Kconfig"
463 source "arch/arm/mach-ixp23xx/Kconfig"
465 source "arch/arm/mach-pxa/Kconfig"
467 source "arch/arm/mach-sa1100/Kconfig"
469 source "arch/arm/plat-omap/Kconfig"
471 source "arch/arm/mach-omap1/Kconfig"
473 source "arch/arm/mach-omap2/Kconfig"
475 source "arch/arm/mach-orion/Kconfig"
477 source "arch/arm/plat-s3c24xx/Kconfig"
478 source "arch/arm/plat-s3c/Kconfig"
481 source "arch/arm/mach-s3c2400/Kconfig"
482 source "arch/arm/mach-s3c2410/Kconfig"
483 source "arch/arm/mach-s3c2412/Kconfig"
484 source "arch/arm/mach-s3c2440/Kconfig"
485 source "arch/arm/mach-s3c2442/Kconfig"
486 source "arch/arm/mach-s3c2443/Kconfig"
489 source "arch/arm/mach-lh7a40x/Kconfig"
491 source "arch/arm/mach-imx/Kconfig"
493 source "arch/arm/mach-h720x/Kconfig"
495 source "arch/arm/mach-versatile/Kconfig"
497 source "arch/arm/mach-aaec2000/Kconfig"
499 source "arch/arm/mach-realview/Kconfig"
501 source "arch/arm/mach-at91/Kconfig"
503 source "arch/arm/plat-mxc/Kconfig"
505 source "arch/arm/mach-netx/Kconfig"
507 source "arch/arm/mach-ns9xxx/Kconfig"
509 source "arch/arm/mach-davinci/Kconfig"
511 source "arch/arm/mach-ks8695/Kconfig"
513 source "arch/arm/mach-msm/Kconfig"
515 # Definitions to make life easier
522 source arch/arm/mm/Kconfig
525 bool "Enable iWMMXt support"
526 depends on CPU_XSCALE || CPU_XSC3
527 default y if PXA27x || PXA3xx
529 Enable support for iWMMXt context switching at run time if
530 running on a CPU that supports it.
532 # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
535 depends on CPU_XSCALE && !XSCALE_PMU_TIMER
539 source "arch/arm/Kconfig-nommu"
544 source "arch/arm/common/Kconfig"
546 config FORCE_MAX_ZONEORDER
559 Find out whether you have ISA slots on your motherboard. ISA is the
560 name of a bus system, i.e. the way the CPU talks to the other stuff
561 inside your box. Other bus systems are PCI, EISA, MicroChannel
562 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
563 newer boards don't support it. If you have ISA, say Y, otherwise N.
565 # Select ISA DMA controller support
570 # Select ISA DMA interface
575 bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
577 Find out whether you have a PCI motherboard. PCI is the name of a
578 bus system, i.e. the way the CPU talks to the other stuff inside
579 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
580 VESA. If you have PCI, say Y, otherwise N.
585 # Select the host bridge type
586 config PCI_HOST_VIA82C505
588 depends on PCI && ARCH_SHARK
591 config PCI_HOST_ITE8152
593 depends on PCI && MACH_ARMCORE
597 source "drivers/pci/Kconfig"
599 source "drivers/pcmcia/Kconfig"
603 menu "Kernel Features"
605 source "kernel/time/Kconfig"
608 bool "Symmetric Multi-Processing (EXPERIMENTAL)"
609 depends on EXPERIMENTAL && REALVIEW_MPCORE
611 This enables support for systems with more than one CPU. If you have
612 a system with only one CPU, like most personal computers, say N. If
613 you have a system with more than one CPU, say Y.
615 If you say N here, the kernel will run on single and multiprocessor
616 machines, but will use only one CPU of a multiprocessor machine. If
617 you say Y here, the kernel will run on many, but not all, single
618 processor machines. On a single processor machine, the kernel will
619 run faster if you say N here.
621 See also the <file:Documentation/smp.txt>,
622 <file:Documentation/i386/IO-APIC.txt>,
623 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
624 <http://www.linuxdoc.org/docs.html#howto>.
626 If you don't know what to do here, say N.
629 int "Maximum number of CPUs (2-32)"
635 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
636 depends on SMP && HOTPLUG && EXPERIMENTAL
638 Say Y here to experiment with turning CPUs off and on. CPUs
639 can be controlled through /sys/devices/system/cpu.
642 bool "Use local timer interrupts"
643 depends on SMP && REALVIEW_MPCORE
646 Enable support for local timers on SMP platforms, rather then the
647 legacy IPI broadcast method. Local timers allows the system
648 accounting to be spread across the timer interval, preventing a
649 "thundering herd" at every timer tick.
652 bool "Preemptible Kernel (EXPERIMENTAL)"
653 depends on EXPERIMENTAL
655 This option reduces the latency of the kernel when reacting to
656 real-time or interactive events by allowing a low priority process to
657 be preempted even if it is in kernel mode executing a system call.
658 This allows applications to run more reliably even when the system is
661 Say Y here if you are building a kernel for a desktop, embedded
662 or real-time system. Say N if you are unsure.
665 bool "Dynamic tick timer"
666 depends on !GENERIC_CLOCKEVENTS
668 Select this option if you want to disable continuous timer ticks
669 and have them programmed to occur as required. This option saves
670 power as the system can remain in idle state for longer.
672 By default dynamic tick is disabled during the boot, and can be
673 manually enabled with:
675 echo 1 > /sys/devices/system/timer/timer0/dyn_tick
677 Alternatively, if you want dynamic tick automatically enabled
678 during boot, pass "dyntick=enable" via the kernel command string.
680 Please note that dynamic tick may affect the accuracy of
681 timekeeping on some platforms depending on the implementation.
682 Currently at least OMAP, PXA2xx and SA11x0 platforms are known
683 to have accurate timekeeping with dynamic tick.
687 default 128 if ARCH_L7200
688 default 200 if ARCH_EBSA110 || ARCH_S3C2410
689 default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
690 default AT91_TIMER_HZ if ARCH_AT91
694 bool "Use the ARM EABI to compile the kernel"
696 This option allows for the kernel to be compiled using the latest
697 ARM ABI (aka EABI). This is only useful if you are using a user
698 space environment that is also compiled with EABI.
700 Since there are major incompatibilities between the legacy ABI and
701 EABI, especially with regard to structure member alignment, this
702 option also changes the kernel syscall calling convention to
703 disambiguate both ABIs and allow for backward compatibility support
704 (selected with CONFIG_OABI_COMPAT).
706 To use this you need GCC version 4.0.0 or later.
709 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
710 depends on AEABI && EXPERIMENTAL
713 This option preserves the old syscall interface along with the
714 new (ARM EABI) one. It also provides a compatibility layer to
715 intercept syscalls that have structure arguments which layout
716 in memory differs between the legacy ABI and the new ARM EABI
717 (only for non "thumb" binaries). This option adds a tiny
718 overhead to all syscalls and produces a slightly larger kernel.
719 If you know you'll be using only pure EABI user space then you
720 can say N here. If this option is not selected and you attempt
721 to execute a legacy ABI binary then the result will be
722 UNPREDICTABLE (in fact it can be predicted that it won't work
723 at all). If in doubt say Y.
725 config ARCH_DISCONTIGMEM_ENABLE
727 default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
729 Say Y to support efficient handling of discontiguous physical memory,
730 for architectures which are either NUMA (Non-Uniform Memory Access)
731 or have huge holes in the physical address space for other reasons.
732 See <file:Documentation/vm/numa> for more.
736 default "4" if ARCH_LH7A40X
738 depends on NEED_MULTIPLE_NODES
743 bool "Timer and CPU usage LEDs"
744 depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
745 ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
746 ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
747 ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
748 ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
749 ARCH_AT91 || MACH_TRIZEPS4 || ARCH_DAVINCI || \
750 ARCH_KS8695 || MACH_RD88F5182
752 If you say Y here, the LEDs on your machine will be used
753 to provide useful information about your current system status.
755 If you are compiling a kernel for a NetWinder or EBSA-285, you will
756 be able to select which LEDs are active using the options below. If
757 you are compiling a kernel for the EBSA-110 or the LART however, the
758 red LED will simply flash regularly to indicate that the system is
759 still functional. It is safe to say Y here if you have a CATS
760 system, but the driver will do nothing.
763 bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
764 OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
765 || MACH_OMAP_PERSEUS2
767 depends on !GENERIC_CLOCKEVENTS
768 default y if ARCH_EBSA110
770 If you say Y here, one of the system LEDs (the green one on the
771 NetWinder, the amber one on the EBSA285, or the red one on the LART)
772 will flash regularly to indicate that the system is still
773 operational. This is mainly useful to kernel hackers who are
774 debugging unstable kernels.
776 The LART uses the same LED for both Timer LED and CPU usage LED
777 functions. You may choose to use both, but the Timer LED function
778 will overrule the CPU usage LED.
781 bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
783 || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
784 || MACH_OMAP_PERSEUS2
787 If you say Y here, the red LED will be used to give a good real
788 time indication of CPU usage, by lighting whenever the idle task
789 is not currently executing.
791 The LART uses the same LED for both Timer LED and CPU usage LED
792 functions. You may choose to use both, but the Timer LED function
793 will overrule the CPU usage LED.
795 config ALIGNMENT_TRAP
797 depends on CPU_CP15_MMU
798 default y if !ARCH_EBSA110
800 ARM processors cannot fetch/store information which is not
801 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
802 address divisible by 4. On 32-bit ARM processors, these non-aligned
803 fetch/store instructions will be emulated in software if you say
804 here, which has a severe performance impact. This is necessary for
805 correct operation of some network protocols. With an IP-only
806 configuration it is safe to say N, otherwise say Y.
812 # Compressed boot loader in ROM. Yes, we really want to ask about
813 # TEXT and BSS so we preserve their values in the config files.
814 config ZBOOT_ROM_TEXT
815 hex "Compressed ROM boot loader base address"
818 The physical address at which the ROM-able zImage is to be
819 placed in the target. Platforms which normally make use of
820 ROM-able zImage formats normally set this to a suitable
821 value in their defconfig file.
823 If ZBOOT_ROM is not enabled, this has no effect.
826 hex "Compressed ROM boot loader BSS address"
829 The base address of an area of read/write memory in the target
830 for the ROM-able zImage which must be available while the
831 decompressor is running. It must be large enough to hold the
832 entire decompressed kernel plus an additional 128 KiB.
833 Platforms which normally make use of ROM-able zImage formats
834 normally set this to a suitable value in their defconfig file.
836 If ZBOOT_ROM is not enabled, this has no effect.
839 bool "Compressed boot loader in ROM/flash"
840 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
842 Say Y here if you intend to execute your compressed kernel image
843 (zImage) directly from ROM or flash. If unsure, say N.
846 string "Default kernel command string"
849 On some architectures (EBSA110 and CATS), there is currently no way
850 for the boot loader to pass arguments to the kernel. For these
851 architectures, you should supply some command-line options at build
852 time by entering them here. As a minimum, you should specify the
853 memory size and the root device (e.g., mem=64M root=/dev/nfs).
856 bool "Kernel Execute-In-Place from ROM"
857 depends on !ZBOOT_ROM
859 Execute-In-Place allows the kernel to run from non-volatile storage
860 directly addressable by the CPU, such as NOR flash. This saves RAM
861 space since the text section of the kernel is not loaded from flash
862 to RAM. Read-write sections, such as the data section and stack,
863 are still copied to RAM. The XIP kernel is not compressed since
864 it has to run directly from flash, so it will take more space to
865 store it. The flash address used to link the kernel object files,
866 and for storing it, is configuration dependent. Therefore, if you
867 say Y here, you must know the proper physical address where to
868 store the kernel image depending on your own flash memory usage.
870 Also note that the make target becomes "make xipImage" rather than
871 "make zImage" or "make Image". The final kernel binary to put in
872 ROM memory will be arch/arm/boot/xipImage.
877 hex "XIP Kernel Physical Location"
878 depends on XIP_KERNEL
881 This is the physical address in your flash memory the kernel will
882 be linked for and stored to. This address is dependent on your
886 bool "Kexec system call (EXPERIMENTAL)"
887 depends on EXPERIMENTAL
889 kexec is a system call that implements the ability to shutdown your
890 current kernel, and to start another kernel. It is like a reboot
891 but it is independent of the system firmware. And like a reboot
892 you can start any kernel with it, not just Linux.
894 It is an ongoing process to be certain the hardware in a machine
895 is properly shutdown, so do not be surprised if this code does not
896 initially work for you. It may help to enable device hotplugging
901 if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
903 menu "CPU Frequency scaling"
905 source "drivers/cpufreq/Kconfig"
907 config CPU_FREQ_SA1100
909 depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
912 config CPU_FREQ_SA1110
914 depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
917 config CPU_FREQ_INTEGRATOR
918 tristate "CPUfreq driver for ARM Integrator CPUs"
919 depends on ARCH_INTEGRATOR && CPU_FREQ
922 This enables the CPUfreq driver for ARM Integrator CPUs.
924 For details, take a look at <file:Documentation/cpu-freq>.
929 tristate "CPUfreq driver for i.MX CPUs"
930 depends on ARCH_IMX && CPU_FREQ
933 This enables the CPUfreq driver for i.MX CPUs.
939 depends on CPU_FREQ && ARCH_PXA && PXA25x
941 select CPU_FREQ_DEFAULT_GOV_USERSPACE
947 menu "Floating point emulation"
949 comment "At least one emulation must be selected"
952 bool "NWFPE math emulation"
953 depends on !AEABI || OABI_COMPAT
955 Say Y to include the NWFPE floating point emulator in the kernel.
956 This is necessary to run most binaries. Linux does not currently
957 support floating point hardware so you need to say Y here even if
958 your machine has an FPA or floating point co-processor podule.
960 You may say N here if you are going to load the Acorn FPEmulator
964 bool "Support extended precision"
967 Say Y to include 80-bit support in the kernel floating-point
968 emulator. Otherwise, only 32 and 64-bit support is compiled in.
969 Note that gcc does not generate 80-bit operations by default,
970 so in most cases this option only enlarges the size of the
971 floating point emulator without any good reason.
973 You almost surely want to say N here.
976 bool "FastFPE math emulation (EXPERIMENTAL)"
977 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
979 Say Y here to include the FAST floating point emulator in the kernel.
980 This is an experimental much faster emulator which now also has full
981 precision for the mantissa. It does not support any exceptions.
982 It is very simple, and approximately 3-6 times faster than NWFPE.
984 It should be sufficient for most programs. It may be not suitable
985 for scientific calculations, but you have to check this for yourself.
986 If you do not feel you need a faster FP emulation you should better
990 bool "VFP-format floating point maths"
991 depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
993 Say Y to include VFP support code in the kernel. This is needed
994 if your hardware includes a VFP unit.
996 Please see <file:Documentation/arm/VFP/release-notes.txt> for
997 release notes and additional status information.
999 Say N if your target does not have VFP hardware.
1007 bool "Advanced SIMD (NEON) Extension support"
1008 depends on VFPv3 && CPU_V7
1010 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1015 menu "Userspace binary formats"
1017 source "fs/Kconfig.binfmt"
1020 tristate "RISC OS personality"
1023 Say Y here to include the kernel code necessary if you want to run
1024 Acorn RISC OS/Arthur binaries under Linux. This code is still very
1025 experimental; if this sounds frightening, say N and sleep in peace.
1026 You can also say M here to compile this support as a module (which
1027 will be called arthur).
1031 menu "Power management options"
1033 source "kernel/power/Kconfig"
1035 config ARCH_SUSPEND_POSSIBLE
1040 source "net/Kconfig"
1042 menu "Device Drivers"
1044 source "drivers/base/Kconfig"
1046 source "drivers/connector/Kconfig"
1048 if ALIGNMENT_TRAP || !CPU_CP15_MMU
1049 source "drivers/mtd/Kconfig"
1052 source "drivers/parport/Kconfig"
1054 source "drivers/pnp/Kconfig"
1056 source "drivers/block/Kconfig"
1058 # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1060 source "drivers/misc/Kconfig"
1062 if PCMCIA || ARCH_CLPS7500 || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX \
1063 || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
1064 || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \
1066 source "drivers/ide/Kconfig"
1069 source "drivers/scsi/Kconfig"
1071 source "drivers/ata/Kconfig"
1073 source "drivers/md/Kconfig"
1075 source "drivers/message/fusion/Kconfig"
1077 source "drivers/ieee1394/Kconfig"
1079 source "drivers/message/i2o/Kconfig"
1081 source "drivers/net/Kconfig"
1083 source "drivers/isdn/Kconfig"
1085 # input before char - char/joystick depends on it. As does USB.
1087 source "drivers/input/Kconfig"
1089 source "drivers/char/Kconfig"
1091 source "drivers/i2c/Kconfig"
1093 source "drivers/spi/Kconfig"
1095 source "drivers/w1/Kconfig"
1097 source "drivers/power/Kconfig"
1099 source "drivers/hwmon/Kconfig"
1101 source "drivers/watchdog/Kconfig"
1103 source "drivers/ssb/Kconfig"
1105 #source "drivers/l3/Kconfig"
1107 source "drivers/mfd/Kconfig"
1109 source "drivers/media/Kconfig"
1111 source "drivers/video/Kconfig"
1113 source "sound/Kconfig"
1115 source "drivers/hid/Kconfig"
1117 source "drivers/usb/Kconfig"
1119 source "drivers/mmc/Kconfig"
1121 source "drivers/leds/Kconfig"
1123 source "drivers/rtc/Kconfig"
1125 source "drivers/dma/Kconfig"
1127 source "drivers/dca/Kconfig"
1133 source "arch/arm/Kconfig.instrumentation"
1135 source "arch/arm/Kconfig.debug"
1137 source "security/Kconfig"
1139 source "crypto/Kconfig"
1141 source "lib/Kconfig"